include/wx/gtk/treectrl.h

   1 /*
   2  * Author: Robert Roebling
   3  *
   4  * Copyright: (C) 1997,1998 Robert Roebling
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the wxWindows Licence, which
   8  * you have received with this library (see Licence.htm).
   9  *
  10  */
  11
  12 #ifndef __GTKTREECTRL_H__
  13 #define __GTKTREECTRL_H__
  14
  15 #ifdef __GNUG__
  16 #pragma interface "treectrl.h"
  17 #endif
  18
  19 #include "wx/defs.h"
  20 #include "wx/string.h"
  21 #include "wx/list.h"
  22 #include "wx/control.h"
  23 #include "wx/event.h"
  24 #include "wx/imaglist.h"
  25 #include "wx/scrolwin.h"
  26 #include "wx/dcclient.h"
  27
  28 #include <gtk/gtk.h>
  29
  30 //-----------------------------------------------------------------------------
  31 // classes
  32 //-----------------------------------------------------------------------------
  33
  34 class wxTreeItem;
  35 class wxTreeCtrl;
  36 class wxTreeEvent;
  37
  38 class wxImageList;
  39
  40 //-----------------------------------------------------------------------------
  41 // constants
  42 //-----------------------------------------------------------------------------
  43
  44 // WXDLLEXPORT extern const char *wxTreeNameStr;
  45
  46 #define wxTREE_MASK_HANDLE          0x0001
  47 #define wxTREE_MASK_STATE           0x0002
  48 #define wxTREE_MASK_TEXT            0x0004
  49 #define wxTREE_MASK_IMAGE           0x0008
  50 #define wxTREE_MASK_SELECTED_IMAGE  0x0010
  51 #define wxTREE_MASK_CHILDREN        0x0020
  52 #define wxTREE_MASK_DATA            0x0040
  53
  54 #define wxTREE_STATE_BOLD           0x0001
  55 #define wxTREE_STATE_DROPHILITED    0x0002
  56 #define wxTREE_STATE_EXPANDED       0x0004
  57 #define wxTREE_STATE_EXPANDEDONCE   0x0008
  58 #define wxTREE_STATE_FOCUSED        0x0010
  59 #define wxTREE_STATE_SELECTED       0x0020
  60 #define wxTREE_STATE_CUT            0x0040
  61
  62 #define wxTREE_HITTEST_ABOVE            0x0001  // Above the client area.
  63 #define wxTREE_HITTEST_BELOW            0x0002  // Below the client area.
  64 #define wxTREE_HITTEST_NOWHERE          0x0004  // In the client area but below the last item.
  65 #define wxTREE_HITTEST_ONITEMBUTTON     0x0010  // On the button associated with an item.
  66 #define wxTREE_HITTEST_ONITEMICON       0x0020  // On the bitmap associated with an item.
  67 #define wxTREE_HITTEST_ONITEMINDENT     0x0040  // In the indentation associated with an item.
  68 #define wxTREE_HITTEST_ONITEMLABEL      0x0080  // On the label (string) associated with an item.
  69 #define wxTREE_HITTEST_ONITEMRIGHT      0x0100  // In the area to the right of an item.
  70 #define wxTREE_HITTEST_ONITEMSTATEICON  0x0200  // On the state icon for a tree view item that is in a user-defined state.
  71 #define wxTREE_HITTEST_TOLEFT           0x0400  // To the right of the client area.
  72 #define wxTREE_HITTEST_TORIGHT          0x0800  // To the left of the client area.
  73
  74 #define wxTREE_HITTEST_ONITEM (wxTREE_HITTEST_ONITEMICON | wxTREE_HITTEST_ONITEMLABEL | wxTREE_HITTEST_ONITEMSTATEICON)
  75
  76 // Flags for GetNextItem
  77 enum {
  78     wxTREE_NEXT_CARET,                 // Retrieves the currently selected item.
  79     wxTREE_NEXT_CHILD,                 // Retrieves the first child item. The hItem parameter must be NULL.
  80     wxTREE_NEXT_DROPHILITE,            // Retrieves the item that is the target of a drag-and-drop operation.
  81     wxTREE_NEXT_FIRSTVISIBLE,          // Retrieves the first visible item.
  82     wxTREE_NEXT_NEXT,                  // Retrieves the next sibling item.
  83     wxTREE_NEXT_NEXTVISIBLE,           // Retrieves the next visible item that follows the specified item.
  84     wxTREE_NEXT_PARENT,                // Retrieves the parent of the specified item.
  85     wxTREE_NEXT_PREVIOUS,              // Retrieves the previous sibling item.
  86     wxTREE_NEXT_PREVIOUSVISIBLE,       // Retrieves the first visible item that precedes the specified item.
  87     wxTREE_NEXT_ROOT                   // Retrieves the first child item of the root item of which the specified item is a part.
  88 };
  89
  90 // Flags for ExpandItem
  91 enum {
  92     wxTREE_EXPAND_EXPAND,
  93     wxTREE_EXPAND_COLLAPSE,
  94     wxTREE_EXPAND_COLLAPSE_RESET,
  95     wxTREE_EXPAND_TOGGLE
  96 };
  97
  98 // Flags for InsertItem
  99 enum {
 100     wxTREE_INSERT_LAST = -1,
 101     wxTREE_INSERT_FIRST = -2,
 102     wxTREE_INSERT_SORT = -3
 103 };
 104
 105 //-----------------------------------------------------------------------------
 106 // wxTreeItem
 107 //-----------------------------------------------------------------------------
 108
 109
 110 class WXDLLEXPORT wxTreeItem: public wxObject
 111 {
 112 public:
 113   wxTreeCtrl  *m_owner;
 114   GtkWidget      *m_parentwidget;
 115   GtkTreeItem    *m_widget;
 116   GtkTree        *m_tree;
 117   long            m_mask;
 118   long            m_itemId;
 119   long            m_state;
 120   long            m_stateMask;
 121   wxString        m_text;
 122   int             m_image;
 123   int             m_selectedImage;
 124   int             m_children;
 125   wxList          m_childlist;
 126   long            m_data;
 127
 128   wxTreeItem();
 129   wxTreeItem(GtkWidget *parent, const wxTreeItem &item);
 130   ~wxTreeItem();
 131
 132   void Create();
 133
 134   void AddChild(wxTreeItem *child);
 135   void DeleteChildren();
 136   bool HasChildren();
 137   wxTreeItem *FindItem(long itemId) const;
 138   wxTreeItem *FindItem(GtkTreeItem *item) const;
 139
 140   // Accessors
 141   inline long GetMask() const { return m_mask; }
 142   inline long GetItemId() const { return m_itemId; }
 143   inline long GetState() const { return m_state; }
 144   inline long GetStateMask() const { return m_stateMask; }
 145   inline wxString GetText() const { return m_text; }
 146   inline int GetImage() const { return m_image; }
 147   inline int GetSelectedImage() const { return m_selectedImage; }
 148   inline const wxList &GetChildren() const { return m_childlist; }
 149   inline long GetData() const { return m_data; }
 150
 151   inline void SetMask(long mask) { m_mask = mask; }
 152   inline void SetItemId(long id) { m_itemId = m_itemId = id; }
 153   inline void GetState(long state) { m_state = state; }
 154   inline void SetStateMask(long stateMask) { m_stateMask = stateMask; }
 155   inline void GetText(const wxString& text) { m_text = text; }
 156   inline void SetImage(int image) { m_image = image; }
 157   inline void SetSelectedImage(int selImage) { m_selectedImage = selImage; }
 158   inline void SetChildren(const wxList &children) { m_childlist = children; }
 159   inline void SetData(long data) { m_data = data; }
 160
 161   int NumberOfVisibleDescendents();
 162 private:
 163   friend wxTreeCtrl;
 164   friend void gtk_treeitem_expand_callback(GtkWidget *widget, wxTreeItem *treeitem);
 165   friend void gtk_treeitem_collapse_callback(GtkWidget *widget, wxTreeItem *treeitem);
 166   friend void gtk_treeitem_select_callback( GtkWidget *WXUNUSED(widget), wxTreeItem *treeitem);
 167   friend void gtk_treeitem_deselect_callback( GtkWidget *WXUNUSED(widget), wxTreeItem *treeitem);
 168
 169   void AddSubtree();
 170   void PrepareEvent(wxTreeEvent &event);
 171   void SendDelete(wxWindow *target);
 172   void SendExpand(wxWindow *target);
 173   void SendExpanding(wxWindow *target);
 174   void SendCollapse(wxWindow *target);
 175   void SendCollapsing(wxWindow *target);
 176   void SendSelChanged(wxWindow *target);
 177   void SendSelChanging(wxWindow *target);
 178
 179   inline wxTreeItem *GetChild(long no) {
 180     return (wxTreeItem *)(m_childlist.Nth(no)->Data());
 181   }
 182   inline long GetChildrenNumber() {
 183     return m_childlist.Number();
 184   }
 185
 186   guint expand_handler;
 187   guint collapse_handler;
 188
 189   DECLARE_DYNAMIC_CLASS(wxTreeItem)
 190 };
 191
 192 //-----------------------------------------------------------------------------
 193 // wxTreeCtrl
 194 //-----------------------------------------------------------------------------
 195
 196 class wxTreeCtrl: public wxScrolledWindow {
 197 public:
 198   GtkTree             *m_tree;
 199
 200   wxTreeCtrl();
 201   wxTreeCtrl(wxWindow *parent, const wxWindowID id = -1,
 202       const wxPoint& pos = wxDefaultPosition,
 203       const wxSize& size = wxDefaultSize,
 204       long style = wxTR_HAS_BUTTONS,
 205       const wxString& name = "wxTreeCtrl" );
 206   ~wxTreeCtrl();
 207   bool Create(wxWindow *parent, const wxWindowID id = -1,
 208       const wxPoint& pos = wxDefaultPosition,
 209       const wxSize& size = wxDefaultSize,
 210       long style = wxTR_HAS_BUTTONS,
 211       const wxString& name = "wxTreeCtrl");
 212
 213   int GetCount() const;
 214
 215   long InsertItem( long parent, const wxString& label, long data = 0,
 216                    int image = -1, int selImage = -1,
 217                    long insertAfter = wxTREE_INSERT_LAST );
 218
 219   long InsertItem( long parent, wxTreeItem &info,
 220                    long insertAfter = wxTREE_INSERT_LAST );
 221   void DeleteItem( long item );
 222   void DeleteChildren( long item );
 223   bool DeleteAllItems();
 224
 225   bool ExpandItem(long item)   { return ExpandItem(item, wxTREE_EXPAND_EXPAND);   }
 226   bool ExpandItem( long item, int action );
 227
 228   bool CollapseItem(long item) { return ExpandItem(item, wxTREE_EXPAND_COLLAPSE); }
 229   bool ToggleItem(long item)   { return ExpandItem(item, wxTREE_EXPAND_TOGGLE);   }
 230
 231     // is the item expanded now?
 232   bool IsItemExpanded(long item)
 233   {
 234     wxTreeItem *pItem = FindItem(item);
 235     return pItem && (pItem->GetState() & wxTREE_STATE_EXPANDED);
 236   }
 237
 238 /*
 239   bool GetItem( wxTreeItem &info ) const;
 240 */
 241
 242   long GetItemData( long item ) const;
 243   wxString GetItemText( long item ) const;
 244   int  GetItemImage(long item) const;
 245   long GetParent( long item ) const;
 246   long GetRootItem() const;
 247 /*
 248   long GetSelection() const;
 249   bool SelectItem( long item );
 250 */
 251
 252   bool ItemHasChildren( long item ) const;
 253   void SetIndent( int indent );
 254   int GetIndent() const;
 255
 256 /*
 257   bool SetItem( wxTreeItem &info );
 258   bool SetItemData( long item, long data );
 259   bool SetItemText( long item, const wxString &text );
 260   void SetItemImage(long item, int image, int imageSel) const;
 261   long HitTest( const wxPoint& point, int &flags );
 262 */
 263
 264   wxTreeItem *FindItem(GtkTreeItem *item) const;
 265
 266   wxImageList *GetImageList(int which = wxIMAGE_LIST_NORMAL) const;
 267   void SetImageList(wxImageList *imageList, int which = wxIMAGE_LIST_NORMAL);
 268
 269 private:
 270   // set the selection to the specified item generating appropriate event(s) if
 271   // not disabled
 272   void SelectItem(wxTreeItem *item, bool bDoEvents = TRUE);
 273
 274   wxTreeItem       *m_anchor;
 275   wxTreeItem       *m_current;
 276   int                  m_indent;
 277   long                 m_lastId;
 278   bool                 m_isCreated;
 279   wxImageList         *m_imageList;
 280   wxImageList         *m_smallImageList;
 281
 282   void CalculateLevel( wxTreeItem *item, wxPaintDC &dc, int level, int &y );
 283   void CalculatePositions();
 284   wxTreeItem *FindItem( long itemId ) const;
 285
 286 //  DECLARE_EVENT_TABLE()
 287   DECLARE_DYNAMIC_CLASS(wxTreeCtrl)
 288 };
 289
 290 //-----------------------------------------------------------------------------
 291 // wxTreeEvent
 292 //-----------------------------------------------------------------------------
 293
 294 class WXDLLEXPORT wxTreeEvent: public wxCommandEvent
 295 {
 296   DECLARE_DYNAMIC_CLASS(wxTreeEvent)
 297
 298  public:
 299   wxTreeEvent(wxEventType commandType = wxEVT_NULL, int id = 0);
 300
 301   int           m_code;
 302   wxTreeItem    m_item;
 303   long          m_oldItem;
 304   wxPoint       m_pointDrag;
 305
 306   inline long GetOldItem() const { return m_oldItem; }
 307   inline wxTreeItem& GetItem() const { return (wxTreeItem&) m_item; }
 308   inline wxPoint GetPoint() const { return m_pointDrag; }
 309   inline void SetCode(int code) { m_code = code; }
 310   inline int GetCode() const { return m_code; }
 311 };
 312
 313 typedef void (wxEvtHandler::*wxTreeEventFunction)(wxTreeEvent&);
 314
 315 #define EVT_TREE_BEGIN_DRAG(id, fn) { wxEVT_COMMAND_TREE_BEGIN_DRAG, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL },
 316 #define EVT_TREE_BEGIN_RDRAG(id, fn) { wxEVT_COMMAND_TREE_BEGIN_RDRAG, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL },
 317 #define EVT_TREE_BEGIN_LABEL_EDIT(id, fn) { wxEVT_COMMAND_TREE_BEGIN_LABEL_EDIT, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn , NULL },
 318 #define EVT_TREE_END_LABEL_EDIT(id, fn) { wxEVT_COMMAND_TREE_END_LABEL_EDIT, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL },
 319 #define EVT_TREE_DELETE_ITEM(id, fn) { wxEVT_COMMAND_TREE_DELETE_ITEM, id, -1, ( wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL },
 320 #define EVT_TREE_GET_INFO(id, fn) { wxEVT_COMMAND_TREE_GET_INFO, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL },
 321 #define EVT_TREE_SET_INFO(id, fn) { wxEVT_COMMAND_TREE_SET_INFO, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL },
 322 #define EVT_TREE_ITEM_EXPANDED(id, fn) { wxEVT_COMMAND_TREE_ITEM_EXPANDED, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL },
 323 #define EVT_TREE_ITEM_EXPANDING(id, fn) { wxEVT_COMMAND_TREE_ITEM_EXPANDING, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL },
 324 #define EVT_TREE_ITEM_COLLAPSED(id, fn) { wxEVT_COMMAND_TREE_ITEM_COLLAPSED, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL },
 325 #define EVT_TREE_ITEM_COLLAPSING(id, fn) { wxEVT_COMMAND_TREE_ITEM_COLLAPSING, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL },
 326 #define EVT_TREE_SEL_CHANGED(id, fn) { wxEVT_COMMAND_TREE_SEL_CHANGED, id, -1, ( wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL },
 327 #define EVT_TREE_SEL_CHANGING(id, fn) { wxEVT_COMMAND_TREE_SEL_CHANGING, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL },
 328 #define EVT_TREE_KEY_DOWN(id, fn) { wxEVT_COMMAND_TREE_KEY_DOWN, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL },
 329
 330 #endif
 331     // __GTKTREECTRL_H__